19 years old double her age is 24 then you subtract 5. 19
Answer:
6, 9, 12
Step-by-step explanation:
sum of two sides must be greater than third side
Answer:
95
Step-by-step explanation:
Given data
Number of scores =5
84, 85, 87, and 99
Let the next score be x
Mean =90
So
Total score =84+85+87+99+x
Total score =355+x
Mean=total score /number of score
90=355+x/5
90*5=355+x
450=355+x
450-355=x
x=95
Answer:
41 -12√5
Step-by-step explanation:
- All square roots of natural numbers, other than of perfect squares, are irrational.
so, let the unknown irrational number be x,
solve:
√x + √5 = 6
√x = 6 - √5
( √x ) ² = ( 6 - √5 )²
x = ( 6 - √5 )( 6 - √5 )
x = 36 -6√5 -6√5 + 5
x = 41 -12√5